CHAPTER 21 :
The Orbit and Eyeball

protrusion of the eyeball. Some causes include retrobulbar tumors such as lipomas, rhabdomyosarcomas, optic nerve schwannomas, orbital cellulitis and haematomas

The thin orbital walls are easily fractured. This often causes the eyeball to sink causing enopthalmos

The topographic relationship of the orbit with other cavities allows infections to spread easily between them

Paralysis of the extraocular muscles may cause 'paralysis' of the eyeball or opthalmoplegia or deviation of the eyeball in one direction or another. This is called strabismus and often causes double vision- diplopia